In general, I don't think women like sex as much as mens in terms of that raw carnal lust. For men, it's largely a surface level enjoyment (enjoying their body and how it feels) but for women it's usually much more psychological. So while it is true that women can in fact love sex as much as men, it is typically for a myriad of different reasons than the men.
And this whole 50 shades of gray thing - that doesn't mean women are hornier than men, it means they get turned on differently. For every women who gets off to watching a girl getting jackhammered on xhamster, there are probably a dozen who would prefer fantasizing about 50 shades of r***.
However, to throw a monkey wrench into this, I can't quite wrap my head around the strories I hear about bachelorette parties. From what I hear, it's not uncommon for them to blow a male stripper right on the stage and go f*** him right away. If that's not raw carnal lust I don't know what is.