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