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