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