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