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