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