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