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