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