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