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