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