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