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