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