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