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