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)(11,16)(12,13)(14,15)(17,18,22,24)(19,26,30,23)(20,29,31,25)(21,28,32,27)(33,34,38,41)(35,39,44,47)(36,37,45,40)(42,43,48,46)(1,3)(2,5)(4,12)(6,10)(7,9)(8,16)(11,14)(13,15)(17,19)(18,23)(20,28)(21,29)(22,30)(24,26)(25,32)(27,31)(33,35,38,44)(34,39,41,47)(36,42,45,48)(37,43,40,46)(2,7)(3,10)(8,15)(11,12)(18,24)(20,31)(23,26)(27,28)(33,36,38,45)(34,40,41,37)(35,42,44,48)(39,46,47,43)(1,3)(2,5)(4,11)(6,10)(7,9)(8,13)(12,14)(15,16)(17,20)(18,25)(19,28)(21,26)(22,31)(23,32)(24,29)(27,30)(33,36)(34,37)(35,42)(38,45)(39,43)(40,41)(44,48)(46,47) involution — undirected(1,4)(2,8)(3,11)(5,13)(6,14)(7,15)(9,16)(10,12)(17,19)(18,26)(20,28)(21,25)(22,30)(23,24)(27,31)(29,32)(33,35)(34,39)(36,42)(37,43)(38,44)(40,46)(41,47)(45,48) involution — undirected(1,5)(2,3)(4,13)(6,9)(7,10)(8,11)(12,15)(14,16)(17,21)(18,27)(19,29)(20,26)(22,32)(23,31)(24,28)(25,30)(33,37)(34,36)(35,43)(38,40)(39,42)(41,45)(44,46)(47,48) 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.