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