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