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