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)(19,28)(20,29)(21,22)(23,30)(24,27)(25,32)(26,31)(1,2)(3,7)(4,5)(6,8)(17,19,24,22)(18,21,27,28)(20,30,32,26)(23,29,31,25)(2,5)(6,7)(9,10)(11,13)(12,14)(15,16)(17,20)(18,25)(19,26)(21,31)(22,30)(23,28)(24,32)(27,29) involution — undirected(2,5)(6,7)(11,15)(13,16)(17,21,24,28)(18,19,27,22)(20,31,32,23)(25,26,29,30)(1,2)(3,6)(4,5)(7,8)(9,11)(10,13)(12,15)(14,16)(17,22,24,19)(18,21,27,28)(20,30,32,26)(23,25,31,29)(1,3)(2,6)(4,8)(5,7)(9,10)(11,13)(12,14)(15,16)(17,23,24,31)(18,26,27,30)(19,29,22,25)(20,28,32,21)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.