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