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