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)(15,19)(16,20)(17,22)(18,21)(23,30)(24,32)(25,31)(26,33)(27,34)(28,35)(29,36)(37,41)(38,42)(39,43)(40,44)(6,9)(7,11)(13,15,17,24,18,25,29,39)(14,19,22,32,21,31,36,43)(16,26,28,40,27,23,37,38)(20,33,35,44,34,30,41,42)(5,7,8,11)(6,10,9,12)(13,16)(14,20)(15,23)(17,28)(18,27)(19,30)(21,34)(22,35)(24,38)(25,26)(29,37)(31,33)(32,42)(36,41)(39,40)(43,44)(6,9)(10,12)(16,27)(20,34)(23,26)(28,37)(30,33)(35,41)(38,40)(42,44) involution — undirected(1,3,4,2)(14,21)(19,31)(20,34)(22,36)(30,33)(32,43)(35,41)(42,44)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.