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