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