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