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