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