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