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