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