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