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