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