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)(12,16)(13,15)(1,3,5,4)(2,6,8,7)(9,11,13,12)(10,14,15,16)(17,18,21,25)(19,23,28,31)(20,22,29,24)(26,30,27,32)(1,3,5,4)(2,7,8,6)(10,15)(14,16)(18,22)(19,26)(20,29)(24,25)(27,28)(30,32)(9,12,13,11)(10,16,15,14)(17,19,21,28)(18,23,25,31)(20,26,29,27)(22,30,24,32)(1,4,5,3)(2,6,8,7)(18,24)(19,26)(20,29)(22,25)(23,31)(27,28)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.