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