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