One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,7)(9,10,13,16)(11,17,19,14)(12,20,21,15)(18,22,24,23)(25,26)(27,35)(28,32)(29,41)(30,33)(31,37)(34,43)(36,49)(38,48)(39,46)(40,53)(42,45)(44,51)(47,52)(50,56)(54,55)(1,2,4,5)(3,6,7,8)(9,11,13,19)(10,14,16,17)(12,18,21,24)(15,22,20,23)(28,39)(32,46)(36,50)(40,52)(44,55)(47,53)(49,56)(51,54)(2,5)(6,8)(12,21)(15,20)(18,24)(22,23)(25,27,30,38)(26,31,33,45)(28,36,39,50)(29,42,43,37)(32,44,46,55)(34,48,41,35)(40,54,52,51)(47,56,53,49)(1,3,4,7)(2,6,5,8)(9,12,13,21)(10,15,16,20)(11,18,19,24)(14,22,17,23)(25,28,30,39)(26,32,33,46)(27,36,38,50)(29,40,43,52)(31,44,45,55)(34,47,41,53)(35,49,48,56)(37,51,42,54)(11,19)(14,17)(18,24)(22,23)(26,33)(28,39)(31,45)(34,41)(35,48)(36,50)(40,52)(51,54) involution — undirectedA 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.