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