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