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