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