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