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