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