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