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