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