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