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