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