One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(9,10)(11,15)(12,14)(13,16)(18,22)(20,24)(25,26,29,31)(27,32,30,28)(2,5)(6,8)(9,11,14,13)(10,15,12,16)(18,22)(19,23)(25,27,29,30)(26,28,31,32)(1,2)(3,6)(4,5)(7,8)(9,11,14,13)(10,16,12,15)(17,18,21,22)(19,20,23,24)(25,28,29,32)(26,30,31,27)(1,2)(3,6)(4,5)(7,8)(9,12,14,10)(11,15,13,16)(17,19,21,23)(18,20,22,24)(1,3)(2,6)(4,7)(5,8)(9,13,14,11)(10,15,12,16)(17,20)(18,23)(19,22)(21,24)(25,26)(27,28)(29,31)(30,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.