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