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