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