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