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