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