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