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