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)(21,29)(25,30)(26,31)(27,32)(33,34)(35,43)(36,47)(37,48)(38,42)(39,40)(41,44)(45,46) involution — undirected(2,6)(7,9)(8,12)(14,15)(17,18)(19,20)(21,25)(22,23)(24,28)(26,27)(29,30)(31,32)(34,40)(35,44)(36,48)(42,46) involution — undirected(3,10)(7,9)(11,16)(14,15)(18,23)(19,24)(25,30)(26,31)(33,35,39,44)(34,41,40,43)(36,45,48,38)(37,46,47,42)(1,3,5,10)(2,7,6,9)(4,11,13,16)(8,14,12,15)(17,19,22,24)(18,20,23,28)(21,26,29,31)(25,27,30,32)(33,36)(34,37)(35,45)(38,44)(39,48)(40,47)(41,46)(42,43)(1,2)(3,7)(4,8)(5,6)(9,10)(11,14)(12,13)(15,16)(17,20)(18,24)(19,23)(21,27)(22,28)(25,31)(26,30)(29,32)(33,37)(34,36)(35,46)(38,43)(39,47)(40,48)(41,45)(42,44) involution — undirected(1,4,5,13)(2,8,6,12)(3,11,10,16)(7,14,9,15)(17,21)(18,25)(19,26)(20,27)(22,29)(23,30)(24,31)(28,32)(33,38,39,45)(34,42,40,46)(35,36,44,48)(37,43,47,41)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.