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