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