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