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