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