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