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