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