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