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