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