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