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