I don't know of any site that has pictures of all sides of a style consistantly. Most site will have some styles pictured that way but not all. So finding the style you want will just require a lot of looking.
You can use the front of one style and find a picture of the back of a style that you like and perhaps a picture of the side of even another style. That way your hairdresser will at least know what you like. She - or he - will tell you whether all the parts will go together or not.