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