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