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