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