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