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