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)(17,18,20,22)(19,23,24,21)(26,27)(28,32)(9,10,13,12)(11,14,16,15)(19,24)(21,23)(25,26,29,27)(28,30,32,31)(10,12)(14,15)(17,19)(18,21)(20,24)(22,23)(25,26,29,27)(28,31,32,30)(1,2,4,5)(3,6,7,8)(9,11,13,16)(10,14,12,15)(17,19)(18,21)(20,24)(22,23)(25,27,29,26)(28,31,32,30)(1,3,4,7)(2,6,5,8)(9,12,13,10)(11,15,16,14)(17,18)(19,21)(20,22)(23,24)(25,28,29,32)(26,30,27,31)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.