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