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