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