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