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