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