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