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