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