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