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