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