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