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