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