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