One vertex per element, one color per generator, with an edge from x to x·s.
(3,7)(6,8)(9,10,14,12)(11,16,13,15)(17,18,22,24)(19,20,21,23)(26,28)(30,32)(1,2,5,4)(3,6,7,8)(9,11,14,13)(10,15,12,16)(17,19,22,21)(18,23,24,20)(27,31)(30,32)(10,12)(15,16)(17,20,22,23)(18,19,24,21)(25,26,29,28)(27,30,31,32)(1,3)(2,6)(4,8)(5,7)(9,12,14,10)(11,16,13,15)(17,20)(18,19)(21,24)(22,23)(25,27)(26,30)(28,32)(29,31)(1,4,5,2)(3,8,7,6)(9,13,14,11)(10,15,12,16)(17,21,22,19)(18,23,24,20)(25,28,29,26)(27,32,31,30)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.