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