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