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