Recovery from this type of surgery can involve a lot more pain than a hip replacement because it is dealing only with your soft tissues and there is a significant amount of tissue manipulation that's done. It likely is going to heal differently than your hip replacement and you really should not try to compare the two procedures.
Your incision is a bit red, but if it's not warm to the touch or oozing fluid, it's likely okay. However, I agree that if it concerns you, contact your surgeon's office and email a photo for him. Better to have your mind eased than worry for weeks. In the coming two weeks, keep a watch to see if the redness spreads or anything changes with the wound. That would be a clue to definitely contact your surgeon.