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