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