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