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