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