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