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