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