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