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