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