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