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)(11,15)(12,14)(13,16)(2,6)(7,8)(11,16)(13,15)(17,18,22,26)(19,27,29,23)(20,25,21,31)(24,30,32,28)(1,3,5,4)(2,7,6,8)(9,11,12,16)(10,13,14,15)(17,19)(18,23)(20,30)(21,28)(22,29)(24,25)(26,27)(31,32)(1,3,5,4)(2,7,6,8)(10,14)(13,15)(17,19)(18,24)(20,28)(21,30)(22,29)(23,25)(26,32)(27,31)(1,4,5,3)(2,7,6,8)(17,20,22,21)(18,25,26,31)(19,28,29,30)(23,32,27,24)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.