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