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