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