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