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