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