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