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