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