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