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