There's really not much you can do to get over the soreness aside from waiting it out. It's caused by a number of things:
-Lactic Acid that hasn't been flushed out
-Microtears in your muscles
-The repair process causing hypertrophy. The muscles are getting larger, so they're pushing up against nerve endings, signalling pain.
Things you can do to make the soreness a bit more bearable:
-Gentle Stretching
-Gentle Massaging
-Alternating Hot and Cold cycles in the shower
-Keeping your protein intake high*
*Keeping your protein intake fairly high is important. Protein is what helps to repair your muscles. If you're not getting enough protein, then it takes longer to recover. Usually 1-1.5g per pound of bodyweight is more than enough if you're on a very strict and intense training regimen.
Also, some active recovery is helpful. Short easy rides (20 minutes or so) or a walk around the neighborhood is good as well.