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