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