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