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