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