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