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