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