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