Not one of the many men in Elizabeth Taylor's life, but her priceless jewelry collection, will be the subject of a just-announced co-publishing agreement between the actress and Simon & Schuster. In a book to be called "Elizabeth Taylor: My Love Affair with Jewelry," Dame Elizabeth will offer a text sprinkled with anecdotes about her many precious gems, the men who gave them and her pleasure in them, and there will be photographs of the goodies by John Bigelow Taylor, with art design by Takaaki Matsumoto. The whole will be packaged by Ruth Peltason of Bespoke Books, and the in-house editors at S&S will be Michael Korda and Chuck Adams. They bought world rights from the actress's attorney, Tom Hoberman, and personal manager, Marion Rosenberg, for publication next fall.