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