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