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