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