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