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