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