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