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