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