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