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