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