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