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