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