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