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