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