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)(17,18)(19,23)(20,25)(21,26)(22,27)(24,29)(28,31)(30,32)(33,34,38,42)(35,43,45,39)(36,46,47,40)(37,41,44,48)(4,11)(8,14)(10,15)(12,16)(17,19)(18,23)(20,26)(21,25)(22,29)(24,27)(28,30)(31,32)(33,35,38,45)(34,39,42,43)(36,37,47,44)(40,41,46,48)(2,7)(3,9)(8,14)(10,15)(17,19,22,29)(18,23,27,24)(20,28,30,26)(21,25,31,32)(33,36,38,47)(34,40,42,46)(35,44,45,37)(39,48,43,41)(1,3,6,9)(2,5,7,13)(4,10,11,15)(8,12,14,16)(17,19)(18,24)(20,28)(21,25)(22,29)(23,27)(26,30)(31,32)(33,36)(34,40)(35,37)(38,47)(39,41)(42,46)(43,48)(44,45)(1,4)(2,8)(3,10)(5,12)(6,11)(7,14)(9,15)(13,16)(17,20)(18,25)(19,28)(21,24)(22,30)(23,31)(26,29)(27,32)(33,37)(34,41)(35,36)(38,44)(39,40)(42,48)(43,46)(45,47) involution — undirected(1,5)(2,9)(3,7)(4,12)(6,13)(8,15)(10,14)(11,16)(17,21)(18,26)(19,25)(20,23)(22,31)(24,30)(27,28)(29,32)(33,34)(35,39)(36,40)(37,41)(38,42)(43,45)(44,48)(46,47) involution — undirectedA 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.