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