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