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