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