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