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