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