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