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