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