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