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