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