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