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