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