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