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