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)(16,23)(26,28)(29,30,33,34)(31,35,37,42)(32,39,41,36)(38,44,40,43)(5,6,8,10)(7,9,11,12)(14,18)(15,21)(20,25)(22,27)(30,34)(31,37)(36,39)(38,40)(5,6)(7,9)(8,10)(11,12)(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)(38,43)(39,41)(40,44)(1,2)(3,4)(13,15)(14,19)(16,22)(17,21)(18,24)(20,26)(23,27)(25,28)(29,31)(30,35)(32,40)(33,37)(34,42)(36,44)(38,41)(39,43) involution — undirected(5,7)(6,9)(8,11)(10,12)(13,16)(14,20)(15,22)(17,23)(18,25)(19,26)(21,27)(24,28)(29,32)(30,36)(31,38)(33,41)(34,39)(35,43)(37,40)(42,44) involution — undirectedA 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.