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)(15,26)(16,22)(17,24)(18,23)(19,25)(20,28)(21,29)(27,39)(30,36)(31,38)(32,42)(33,41)(34,37)(35,40)(43,44) involution — undirected(5,6)(7,11)(8,10)(9,12)(13,15,19,29)(14,20,25,37)(16,30,33,43)(17,28,18,34)(21,23,26,24)(22,39,41,38)(27,32,31,35)(36,40,44,42)(2,4)(5,7,8,12)(6,9,10,11)(13,15)(14,21)(16,31)(17,34)(18,28)(19,29)(20,24)(22,39)(23,37)(25,26)(27,33)(30,32)(35,43)(36,40)(38,41)(42,44)(7,12)(9,11)(13,16)(14,22)(15,27)(17,32)(18,35)(19,33)(20,36)(21,38)(23,40)(24,42)(25,41)(26,39)(28,30)(29,31)(34,43)(37,44) involution — undirected(6,10)(9,11)(13,17,19,18)(14,23,25,24)(15,28,29,34)(16,32,33,35)(20,26,37,21)(22,40,41,42)(27,30,31,43)(36,39,44,38)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.