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