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