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