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