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