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