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