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