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