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