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