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)(20,28)(21,33)(26,34)(27,36)(29,35)(31,38)(32,37)(39,41)(40,44)(42,43) involution — undirected(1,2,3,4)(7,8)(10,12)(13,15,17,28,19,29,18,27)(14,20,23,25,24,36,22,35)(16,26,32,42,31,40,33,41)(21,34,38,39,37,44,30,43)(5,7,9,8)(6,10,11,12)(13,16,18,33,19,31,17,32)(14,21,22,30,24,37,23,38)(15,26,27,41,29,40,28,42)(20,34,35,43,36,44,25,39)(5,8,9,7)(6,10,11,12)(16,31)(21,37)(26,40)(30,38)(32,33)(34,44)(39,43)(41,42)(6,11)(10,12)(13,17,19,18)(14,22,24,23)(15,27,29,28)(16,32,31,33)(20,25,36,35)(21,30,37,38)(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.