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