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