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