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