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