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