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