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