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)(19,25)(23,29)(26,31)(30,32)(33,34,38,39)(35,36,40,43)(37,41,46,47)(42,44,48,45)(1,2,6,3)(4,9,12,7)(5,8,13,10)(11,15,16,14)(18,22)(23,29)(24,27)(30,32)(34,39)(36,43)(41,47)(44,45)(2,3)(7,9)(8,10)(14,15)(17,18)(19,23)(20,24)(21,22)(25,29)(26,30)(27,28)(31,32)(33,35,38,40)(34,36,39,43)(37,42,46,48)(41,44,47,45)(1,3,6,2)(4,9,12,7)(5,10,13,8)(11,15,16,14)(17,19)(18,23)(20,26)(21,25)(22,29)(24,30)(27,32)(28,31)(1,4)(2,7)(3,9)(5,11)(6,12)(8,14)(10,15)(13,16)(17,18)(19,23)(20,27)(21,22)(24,28)(25,29)(26,32)(30,31)(33,36)(34,40)(35,39)(37,45)(38,43)(41,42)(44,46)(47,48) involution — undirected(1,5,6,13)(2,8,3,10)(4,11,12,16)(7,14,9,15)(17,20)(18,24)(19,26)(21,28)(22,27)(23,30)(25,31)(29,32)(33,37,38,46)(34,41,39,47)(35,42,40,48)(36,44,43,45)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.