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