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