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