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