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