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