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