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