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