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