Within your custom loop, get all taxonmies for a custom post type (CPT) and display each post within those taxonomies.

loop.php

<?php

/* @link TBA
/* Within your custom loop, get all taxonomies for a custom post type (CPT) and display each post within those taxonomies
----------------------------------------------------------------------------------------*/

$post_type = 'your_cpt_name';

// Get all of the taxonomies for this post type
$taxonomies = get_object_taxonomies((object) array( 'post_type' => $post_type )); ?>

<div class="wrap">
    <?php foreach( $taxonomies as $taxonomy ) :
        // Gets every "category" (term) in this taxonomy to get the posts assigned to it
        $terms = get_terms( $taxonomy );

        foreach( $terms as $term ) :
            $args = array(
                'taxonomy' => $taxonomy,
                'term' => $term->slug,
                'order' => 'ASC',
                'posts_per_page' => -1,
            );

            $loop = new WP_Query($args);

            if ($loop->have_posts()) : ?>
				<div class="row">
                    <h4 itemprop="headline">
                        <?php echo $term->name; ?>
                    </h4>
                    <div class="one-third-wrapper">
                        <?php while ($loop->have_posts()) : $loop->the_post(); ?>
                            <article <?php post_class('one-third') ?>>
                                <a href="<?php echo get_the_permalink(); ?>">
                                    <?php if (has_post_thumbnail()) {
                                        the_post_thumbnail();
                                    } ?>
                                    <?php the_title(); ?>
                                </a>
                            </article>
                        <?php endwhile; ?>
                    </div>
                </div>
            <?php endif;
        endforeach;
    endforeach; ?>
</div>