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