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