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