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