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