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