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