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