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