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