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