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