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