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