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