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