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