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)(19,21)(20,26)(22,24)(23,29)(25,27)(28,30)(31,32)(1,2)(3,6)(4,5)(7,8)(9,10,12,13)(11,15,16,14)(17,19)(18,21)(20,28)(22,25)(23,29)(24,27)(26,30)(31,32)(2,5)(6,7)(10,13)(14,15)(17,20,22,30)(18,23,24,32)(19,26,25,28)(21,31,27,29)(1,3,4,8)(2,6,5,7)(17,18)(19,27)(20,23)(21,25)(22,24)(26,29)(28,31)(30,32)(9,11,12,16)(10,14,13,15)(18,24)(19,25)(23,32)(26,28)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.