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