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