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