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