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