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