Not exactly per say, some say the all female hunters worshiped a godess as opposed to the priest kings, shrugs. But Normans proposed world has a lot of diversity in many aspects, especially with other cultures like the plains peoples who whorshiped nature spirits and the like. He just used the priest kings as the main focus in imediate cultural start point of the books and outside of them doesnt spend all that much time decribing other religious practices unless they are pertanent to the story.
All of which should be beside the point...I havent ever met a real life practicioner of gorean philosophy yet that expoused any adaptation of Normans works as a basis for a religion per say.
To better advise the op I simply need more data, what specifically is she at issue with, and what in her faith should preclude the incorperation of bdsm into her lifestyle. I know of nothing in Gor specifically from my personal experience that would conflict with any faith in any way more than just plain ole bdsm would, if anything a strict gorean imho would be perhaps somewhat more reserved in their practices than their non-gorean counterparts in some regards, at least in ways that Ive seen it practiced.