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