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