Leonard, I've never seen a photo of the court. It was actually something very close to the modern squash court. There's a well-known drawing of it, from White Star advertising. It's on page 138 of The Birth of the Titanic. On page 139 there's a drawing of the swimming bath, from the same source.
On page 145 of The Anatomy of the Titanic there's a photo of the swimming bath. It's very likely that it's really the one on Olympic but they were both the same. There's another photo in Father Browne's Titanic Album and that's definitely Olympic.
You may find these pictures on the Internet. Try using Google's image search.
There's one known photo of Titanic's swimming bath and that was published by the Illustrated London News. I have an original copy of this in my collection, and as I understand it, I am allowed to use this image and credit it to my collection - Ken Marschall does. So here it is: