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