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