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