Hi Bailey,
Visiting Walt Disney World for a celebration is great fun, and graduating from college is a fantastic reason to celebrate! My husband and I often visited Walt Disney World as young adults before we had our daughter. Let me offer you some tips for your trip.
For a group of young adults, I suggest that you check out some of the nighttime offerings at Walt Disney World.
Disney Springs is full of nightlife, entertainment, and dining. Check out Morimoto Asia for delicious Pan-Asian cuisine. Another fun venue to visit at Disney Springs is
Jock Lindsey's Hangar Bar, which has an Indiana Jones connection. You can choose to sit in the unique interior, or sit outside on the water. Another area for your group to explore is
Disney's BoardWalk. While it is a smaller area than Disney Springs, I find it to be quaint and offer many options for evening fun. It is also a quick walk away from the World Showcase at Epcot if you want to split your evening! At Disney's BoardWalk, I think your group might enjoy
Jellyrolls, a high-energy dueling piano bar.
Be sure that you pick up "I'm celebrating" buttons for you and your traveling party. These are available free of charge at Guest Relations at any Disney theme park as well as other locations around Walt Disney World. You can customize them to indicate that you are celebrating your college graduation, and it will be fun to hear cast members and other guest alike wishing you well.
I would love to help you plan more Bailey; however, I am limited in the space that I have to answer. Please do write back if you have further questions!