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