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