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