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