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