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)(15,21)(16,24)(17,18)(19,23)(20,25)(22,27)(26,28)(30,31)(32,39)(36,38)(40,41)(7,11)(10,12)(14,18)(16,25)(19,21)(22,26)(29,30,34,31)(32,37,39,35)(33,38,42,36)(40,43,41,44)(5,7,9,11)(6,10,8,12)(13,14)(15,21)(16,20)(17,18)(19,23)(22,28)(24,25)(26,27)(29,31,34,30)(32,35,39,37)(33,38,42,36)(40,43,41,44)(1,2)(3,4)(13,15,17,23)(14,19,18,21)(16,26,25,22)(20,28,24,27)(29,32,34,39)(30,35,31,37)(33,41,42,40)(36,44,38,43)(5,8,9,6)(7,12,11,10)(13,16)(14,20)(15,22)(17,25)(18,24)(19,27)(21,28)(23,26)(29,33)(30,36)(31,38)(32,40)(34,42)(35,43)(37,44)(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.