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