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