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