Mura CMS : Example of how to create a content item when updating a User

muraCreatePageAndUser.cfm

<cfscript>
public any function onAfterUserSave($) {
	// reference to new user bean
	var user = arguments.$.event('userBean');
	// reference to old user bean
	//var oldUserBean = arguments.$.getBean('user').loadBy(userid=user.getUserID());

	// reference to content item that will be the parent of the 'User' page
	var parentbean = $.getBean('content').loadBy(title='Reps');

	if ( !parentBean.getIsNew() ) {
		var cBean = $.getBean('content')
			.loadBy(remoteid=user.getUserID())
			.setValue('parentid', parentbean.getContentID())
			.setValue('title', user.getFName())
			.setValue('remoteid', user.getUserID())
			.setValue('categories', user.getCategoryID())
			.save();
	}
}
</cfscript>

Is there a way to do this on user creation?

Yes change onAfterUserSave to onAfterUserCreate