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