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