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