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