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