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