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