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