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