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