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