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