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