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