One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,9,12)(7,13,15,10)(8,16,17,11)(14,18,20,19)(5,7,9,15)(6,10,12,13)(8,14,17,20)(11,18,16,19)(21,22,26,30)(23,31,34,45)(24,35,36,46)(25,38,41,29)(27,39,43,33)(28,40,44,37)(32,42,48,51)(47,50,52,49)(2,4)(21,23,26,34)(22,27,30,43)(24,32,36,48)(25,39,41,33)(28,42,44,51)(29,45,38,31)(35,47,46,52)(37,50,40,49)(5,8,9,17)(6,11,12,16)(7,14,15,20)(10,18,13,19)(24,36)(28,44)(32,48)(35,46)(37,40)(42,51)(47,52)(49,50)(7,15)(10,13)(14,20)(18,19)(21,24,26,36)(22,28,30,44)(23,32,34,48)(25,40,41,37)(27,42,43,51)(29,46,38,35)(31,47,45,52)(33,50,39,49)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.