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