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