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