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