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