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