Hey there,

I am really sorry for the delay of this reply as it is a weekend for us here.

By default we will not populate the cancel button from the event/group creation page.

By the way, can you try download my attached file and unzip it, copy inside the file and replace into following file location and see how it goes?
JoomlaFolder\components\com_easysocial\themes\wireframe\groups\create.steps.php
JoomlaFolder\components\com_easysocial\themes\wireframe\events\create.steps.php