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