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