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