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