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