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