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