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