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