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)(17,18,22,28)(19,26,30,24)(20,32,31,25)(21,29,23,27)(1,3,5,4)(2,6,8,7)(9,10)(11,14)(12,13)(15,16)(17,19)(18,24)(20,21)(22,30)(23,31)(25,29)(26,28)(27,32)(10,13)(14,15)(17,19,23,20,22,30,21,31)(18,25,29,24,28,32,27,26)(9,11,12,16)(10,14,13,15)(17,20,21,19,22,31,23,30)(18,26,27,32,28,24,29,25)(1,4,5,3)(2,7,8,6)(17,21,22,23)(18,27,28,29)(19,20,30,31)(24,32,26,25)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.