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