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