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