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