One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(6,9)(7,11) involution — undirected(5,6)(7,10)(8,9)(11,12)(13,14,19,23)(15,24,28,39)(16,21,18,33)(17,30,32,36)(20,25,35,27)(22,29,37,31)(26,41,43,34)(38,40,44,42)(2,4)(13,15,16,25,19,28,18,27)(14,20,33,39,23,35,21,24)(17,26,29,40,32,43,31,42)(22,34,36,44,37,41,30,38)(5,7,8,11)(6,10,9,12)(13,16,19,18)(14,21,23,33)(15,25,28,27)(17,31,32,29)(20,24,35,39)(22,36,37,30)(26,42,43,40)(34,44,41,38)(6,9)(10,12)(13,17,16,29,19,32,18,31)(14,22,33,36,23,37,21,30)(15,26,25,40,28,43,27,42)(20,34,39,44,35,41,24,38)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.