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