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