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