I’m not sure if there’s an easy way to do that with Genesis since it’s designed to strip posts by default when using the Content Limit.
If I come across a way to do it I’ll let you know, but if this is something you really need, then I would probably try using a Portfolio plugin with more options available. The portfolio that comes with this theme is intended to be basic so it doesn’t have a lot of options. A dedicated Portfolio plugin would have much more to offer if that’s what you’re looking for.
The only other thing you could do is remove the Content Limit and some of the format will show.