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