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