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