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