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