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