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