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