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