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)(13,14,18,16)(15,21,22,19)(17,20,25,24)(23,28,26,27)(31,37)(33,41)(35,38)(36,40)(6,8)(7,12)(14,16)(15,22)(17,25)(27,28)(29,30,34,32)(31,38,37,35)(33,40,41,36)(39,42,43,44)(6,8)(10,11)(13,15,18,22)(14,19,16,21)(17,26,25,23)(20,28,24,27)(29,31,34,37)(30,35,32,38)(33,39,41,43)(36,42,40,44)(1,2)(3,4)(5,7)(6,10)(8,11)(9,12)(13,16,18,14)(15,21,22,19)(17,24,25,20)(23,28,26,27)(29,32,34,30)(31,35,37,38)(33,40,41,36)(39,42,43,44)(5,8,9,6)(7,11,12,10)(13,17)(14,20)(15,23)(16,24)(18,25)(19,27)(21,28)(22,26)(29,33)(30,36)(31,39)(32,40)(34,41)(35,42)(37,43)(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.