The intensity of your social life will likely change – and this is mostly a good thing, but be prepared for it.
Being outside of school means you are free from a lot of the weird drama that comes with doing everything in a closed system with roughly the same people. There is still drama, but you can almost always escape it because your life is divided now. You don't live with all your friends and work with them.
On the other hand, making new social connections is a new challenge because you aren't thrown into a closed system with people all at your stage of life with many of the same problems. But making friends definitely happens. For me, wherever I was in life, it always took me about one year to make one new close friend. Patience is key. I would say you make fewer social connections, but a lot of them are of higher quality.
A last piece of advice, don't view work as your only source, or even your primary source, for friends, dates, and hook-ups. Try to keep part of your social life separate.