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