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