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