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