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