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