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