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