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