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