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