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