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