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