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