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