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