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