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