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