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