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