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