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