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