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