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