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