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