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