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