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