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