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