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