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