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