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