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