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