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