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