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