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