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