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