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