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