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