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