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