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