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