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